Effect of different levels of nutrients on yield and fruit quality of grapes cv. Perlette

摘要

The soil application of different doses of N, P and K in six-treatment combination was studied to find out the effect on the yield and bio-chemical characteristics of Perlette grapes. The vines were planted 3m x 3m apart and trained on bower system. The fruit yield, bunch weight, and berry weight differed significantly with different treatments. Application of N, P and K significantly increased the fruit yield from 9.99 kg/vine in T_1(N_(100) P _(300) K_(100)g/ vine) to 17.91 kg/vine in T_5 (N_(500)P_(700) K_(500)) treatment application being at par with treatment T_4 (N_(400)P_(600) K_(400)g/ vine). Fruit yield was found to be maximum with T, treatment application. Maximum bunch weight (399g) was found with N_(500)P_(700)K_(500) (T ). However the effect of these treatments on bunch sizes, berry size and TSS was not apparent. Maximum available phosphorus content (31.25 kg/ha ) of the soil was recorded in T_6 treatment. Organic carbon content of the soil ranged from 0.48 to 0.67 percent from T_1 toT_6 treatment combination.